Communication Apparatus QoS Network Switching
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Solution Overview
Problem
Existing communication technologies, such as those using the IEEE802.11 standard, often fail to ensure quality of service (QoS) for specific traffic characteristics in ad-hoc and direct link modes, leading to unreliable transmission and reception of traffic with desired characteristics.
Innovation Solution
A communication apparatus and method that determines the feasibility of specific traffic characteristics, creates a network accordingly, and manages associations within that network to ensure QoS by switching to a new network if the initial network cannot guarantee the required traffic conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If ad-hoc mode is used for communication, then communication flexibility is improved, but QoS guarantee deteriorates
Solution Approach 1:
The communication apparatus dynamically switches between infrastructure mode and ad-hoc mode based on real-time determination of whether QoS can be guaranteed. When QoS cannot be guaranteed in ad-hoc mode, the system transitions to infrastructure mode to establish a new network with an access point that can provide QoS guarantees, thus adapting the communication mode to the current network conditions and requirements
2Adaptability or versatility
If direct link mode is used for communication, then communication directness is improved, but QoS guarantee deteriorates
Solution Approach 1:
The system dynamically selects between direct link mode and infrastructure mode based on the determination of QoS feasibility. When direct link mode cannot guarantee QoS due to limited frequency bands or existing traffic, the apparatus switches to infrastructure mode where an access point can manage and guarantee QoS for specific traffic characteristics
Solution Approach 2:
The invention introduces an access point as an intermediary when direct link mode cannot satisfy QoS requirements. The access point acts as a mediator that manages traffic flow and provides QoS guarantees, allowing stations to communicate reliably even when direct peer-to-peer communication cannot meet the required performance standards
3Reliability
If infrastructure mode is used for communication, then QoS guarantee is improved, but communication flexibility deteriorates
Solution Approach 1:
The communication apparatus implements dynamic mode selection by determining whether QoS can be guaranteed in ad-hoc mode before switching to infrastructure mode. This dynamic approach allows the system to maintain communication flexibility by using ad-hoc mode when appropriate, while only transitioning to infrastructure mode when QoS guarantees are necessary and cannot be achieved otherwise
Data Source
AI summary
When a station, which associates itself in a wireless network, wants to make transmission/reception of traffic with a certain characteristic, it makes the transmission/reception as it expects. To this end, a communication apparatus which has an access point function and station function determines if the transmission/reception of the traffic with the certain characteristic can be made in the existing wireless network. If that transmission/reception cannot be made in the existing network based on the determination result, the apparatus serves as the access point function to create a network, and communicates with a communication partner using the created network.